Plate-like LiFePO4/C composite with preferential (010) lattice plane synthesized by cetyltrimethylammonium bromide-assisted hydrothermal carbonization

被引：17

作者：

Li, Wei ^{[1
]}

Wei, Zhiqian ^{[1
]}

Huang, Liwu ^{[1
]}

Zhu, Ding ^{[2
]}

Chen, Yungui ^{[1
]}

机构：

[1] Sichuan Univ, Dept Adv Energy Mat, Coll Mat Sci & Engn, Chengdu 610064, Peoples R China

[2] Sichuan Univ, Inst New Energy & Low Carbon Technol, Chengdu 610064, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 651卷

关键词：

Lithium iron phosphate; Preferential growth; Cetyltrimethylammonium bromide; Hydrothermal carbonization; ELECTROCHEMICAL PERFORMANCE; ELECTRON-MICROSCOPY; CATHODE MATERIALS; LITHIUM; SURFACE; GROWTH; IRON; MICROSPHERES; NANOSHEETS; NETWORK;

D O I：

10.1016/j.jallcom.2015.08.071

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Plate-like LiFePO4/C composite with preferential (010) lattice plane is successfully prepared via cetyltrimethylammonium bromide (CTAB)-assisted in-situ hydrothermal carbonization synthesis. The structure, morphology and electrochemical property of the as-obtained products are studied by means of Xray diffraction (XRD), scanning electron microscopy (SEM), high-resolution trans mission electron microscopy (HRTEM) and galvanostatic charge-discharge test, respectively. Due to the synergism of uniform carbon coating enhancing transfer efficiency of electrons and preferential growth of (010) lattice plane facilitating diffusion of Li-ions, the LiFePO4/C composite shows excellent electrochemical performance. The as-obtained products deliver high-rate capacities of 125 mAh g(-1) at 10 C and 110 mAh g(-1) at 20 C, while preserving a high tap density of 1.3 g cm(-3). (C) 2015 Published by Elsevier B.V.

引用

页码：34 / 41

页数：8

共 37 条

[1] Nanostructured materials for advanced energy conversion and storage devices
Aricò, AS
Bruce, P
Scrosati, B
Tarascon, JM
Van Schalkwijk, W
[J]. NATURE MATERIALS, 2005, 4 (05) : 366 - 377
[2] Synthesis and electrochemical analysis of vapor-deposited carbon-coated LiFePO4
Belharouak, I
Johnson, C
Amine, K
[J]. ELECTROCHEMISTRY COMMUNICATIONS, 2005, 7 (10) : 983 - 988
[3] Nanomaterials for rechargeable lithium batteries
Bruce, Peter G.
Scrosati, Bruno
Tarascon, Jean-Marie
[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2008, 47 (16) : 2930 - 2946
[4] Electron microscopy study of the LiFePO4 to FePO4 phase transition
Chen, GY
Song, XY
Richardson, TJ
[J]. ELECTROCHEMICAL AND SOLID STATE LETTERS, 2006, 9 (06) : A295 - A298
[5] Size-selective synthesis of mesoporous LiFePO4/C microspheres based on nucleation and growth rate control of primary particles
Cho, Min-Young
Kim, Haegyeom
Kim, Hyungsub
Lim, Young Su
Kim, Kwang-Bum
Lee, Jae-Won
Kang, Kisuk
Roh, Kwang Chul
[J]. JOURNAL OF MATERIALS CHEMISTRY A, 2014, 2 (16) : 5922 - 5927
[6] Porous olivine composites synthesized by sol-gel technique
Dominko, R
Bele, M
Gaberscek, M
Remskar, M
Hanzel, D
Goupil, JM
Pejovnik, S
Jamnik, J
[J]. JOURNAL OF POWER SOURCES, 2006, 153 (02) : 274 - 280
[7] Electrochemical performance of microdisc-shaped carbon-coated lithium iron phosphate with preferentially exposed (010) planes in lithium sulfate aqueous solution
Fan, Xuliang
Luo, Jingjing
Shao, Chen
Zhou, Xiaoshun
Niu, Zhenjiang
[J]. ELECTROCHIMICA ACTA, 2015, 158 : 342 - 347
[8] Lithium battery materials LiMPO4 (M = Mn, Fe, Co, and Ni):: Insights into defect association, transport mechanisms, and doping behavior
Fisher, Craig A. J.
Prieto, Veluz M. Hart
Islam, M. Saiful
[J]. CHEMISTRY OF MATERIALS, 2008, 20 (18) : 5907 - 5915
[9] Surface structures and crystal morphologies of LiFePO4:: relevance to electrochemical behaviour
Fisher, Craig A. J.
Islam, M. Saiful
[J]. JOURNAL OF MATERIALS CHEMISTRY, 2008, 18 (11) : 1209 - 1215
[10] Lithium-ion intercalation Behavior of LiFePO4 in aqueous and nonaqueous electrolyte solutions
He, Ping
Zhang, Xiao
Wang, Yong-Gang
Cheng, Liang
Xia, Yong-Yao
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2008, 155 (02) : A144 - A150

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